Translation or localization? How to tell what your video needs

Translation is one layer inside localization

Think of the two terms as nested rather than competing. Translation is the language transfer: speech becomes subtitles or a new voice track, and written words become their equivalents. Localization is the larger project of making the video feel native to a locale, and translation is usually its biggest component. Every localized video has been translated; not every translated video has been localized.

The confusion comes from vendors using both words loosely. When someone quotes for localization, ask which layers it includes. When someone quotes for translation, ask whether it covers on-screen text and metadata or only the audio. For a fuller picture of the scope, see what is video localization.

What video translation covers

A translation job renders the meaning of the source in the target language, keeping its structure, order and intent. For video, that usually means:

• Transcribing the speech so there is text to translate.
• Translating the transcript segment by segment, with timing preserved.
• Delivering the result as subtitles, a dubbed voice track, a voice-over or a translated transcript.
• Optionally translating on-screen text, if someone edits the picture.

A good translation is faithful. It does not add jokes, swap examples or change the argument. If the narrator says the product saves two hours every Monday, the translation says two hours every Monday.

What localization adds on top

Localization asks a different question: would someone in this market have made this video this way? The answer often leads to changes a translator would be wrong to make on their own initiative:

• Replacing references that do not travel, such as a sports metaphor, a holiday or a celebrity.
• Converting units, currencies and date formats, including in graphics.
• Choosing a register, formal or informal address, which matters a great deal in German, French, Japanese and Korean.
• Re-rendering on-screen text, charts and lower thirds in the target language.
• Adjusting claims, disclaimers and calls to action to local rules and expectations.
• Rewriting taglines entirely, a practice usually called transcreation.

These changes need sign-off from whoever owns the message, because they alter content, not just language.

The same line, translated and then localized

A five-question test for choosing

Answer these for the specific video and market:

1. Who is the audience? Internal staff and existing customers tolerate a straight translation well; prospects meeting your brand for the first time judge it harder.
2. How culture-bound is the content? A software walkthrough is mostly neutral; a brand film built on local humor is not.
3. What is visible on screen? If key information sits in charts, slides or interface text, translating the audio leaves part of the message in the source language.
4. What happens if a viewer misunderstands? For safety, legal or medical content, a misreading is costly and review must be strict whichever path you choose.
5. How long will the video live? An evergreen video watched for years justifies deeper adaptation; a weekly update usually does not.

If most answers point toward low risk and neutral content, translation is enough. If two or more point toward high stakes, culture-bound material or important on-screen text, plan to localize at least those parts.

When translation is enough

Plenty of video only needs its words carried across: recorded webinars, internal updates, lectures, interviews, how-to tutorials and support videos. The viewer wants information, the visuals are generic, and speed matters more than polish. For this content a reviewed AI translation with subtitles or a voice track usually does the job, and the money saved can go toward reviewing the videos that matter more.

Where translation alone falls short

Translation leaves certain problems untouched, and it is worth knowing them before launch:

• Idioms and humor translated faithfully can land flat or confuse.
• Prices, dates and measurements in graphics stay in the source format.
• On-screen text, including product interfaces in screen recordings, stays untranslated.
• Register may clash with how your brand addresses customers in that market.
• Claims that are fine in one country can be misleading or non-compliant in another.

None of these are translation errors. They are the gaps localization exists to close, and cultural adaptation in video goes through them in detail.

How mydubly handles the translation layer

mydubly translates the speech in a video, which makes it a component of localization rather than the whole of it. It transcribes speech with Whisper, translates the timed segments with a neural machine translation engine, and can generate an AI voice track in the target language that is fitted to the timing of the original lines. You get a translated MP4, the translated audio, SRT and VTT subtitles, and transcripts in both languages, while the video file itself stays on your device.

For localization projects, the transcripts are the most useful output: a reviewer can mark the lines that need cultural changes and see exactly which phrases came through literally. On-screen text, graphics and cultural rewrites stay with your team. Use the video translator for a straight translation, or the video localization page if the video is part of a market launch.

Choosing your next step

Run the five questions on the video you have in mind. If it comes out as translation only, process it, have a fluent colleague skim the translated transcript, and publish. If it comes out as localization, translate the audio first anyway, because the translated transcript is the quickest way to see which lines and visuals need adapting. Either way, begin on the video localization page.